US3793093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a semiconductor device having a very small deviation in lattice constant
Assignee: HANDOTAI KENKYU SHINKOKAI KAWAUCHI JA
•
Filing: 1973-01-12
•
Granted: 1974-02-19
•
Expires: 1993-01-12
Abstract
Abstract A method for producing a semiconductor device using a semiconductor, in which at least two kinds of impurities having different atomic radiuses from one another and from that of the semiconductor are doped in the semiconductor for providing one conduction band therein, so that the lattice constant of the semiconductor is substantially constant.
Inventors
- 👤 J Nishizawa
- 👤 I Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/85; H10D62/854; H10D62/83; H10D62/834; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/018; Y10S148/04; Y10S148/056; Y10S148/061; Y10S148/065; Y10S148/097; Y10S438/00; Y10S438/938
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
25 words
A method for producing a semiconductor device according to claim 1 in which antimony and phosphorus are doped as the impurities in a germanium semiconductor.
Claim 2
Dependent Claim
24 words
A method for producing a semiconductor device according to claim 1 in which the impurities have the same conductivity type as the conduction band.
Claim 3
Dependent Claim
25 words
A method for producing a semiconductor device according to claim 3, in which antimony and phosphorus are dopes as the impurities in a germanium semiconductor.
Claim 4
Dependent Claim
24 words
A method for producing a semiconductor device according to claim 1, in which the impurities have the conductivity type different from the conduction band.
Claim 5
Dependent Claim
28 words
A method for producing a semiconductor device according to claim 1, in which tellurium and selenium are doped as the impurities in a compound semiconductor of gallium arsenide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |